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Everglades Restoration - Phosphorous storage for... decades?

spanglerspangler Posts: 2,799 Captain
I was hoping to better understand the Stormwater Treatment Areas and how they store phosphorous.

I understand that some is captured by aquatic plants, including retention in sedimentary build up after the plants die.

I also understand that some is absorbed by the underlying limestone.  It is frequently mentioned that this allows "storage for decades."

My question is, what happens after decades?  And why decades?  I'm guessing, sorta like activated carbon, the limestone reaches a 'carrying capacity.'

Also, do the periphyton areas have defined life spans of effectiveness before requiring further action, also?

I don't have an academic background in this and I haven't been able to find answers to these questions.  Just trying to get a high level understanding.  Thanks in advance!

There will never be a really free and enlightened state until the state comes to recognize the individual as a higher and independent power, from which all its own power and authority are derived.


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